Prostate cancer screenings: a second opinion H. Gilbert Welch, H. Gilbert Welch is a professor of medicine at the Dartmouth Institute of Health Policy and Clinical Practice. He is the author of "Should I Be Tested for Cancer? Maybe Not and Here's Why."
How song, dance and movies bailed us out of the Depression Morris Dickstein, Morris Dickstein teaches literature and film at the CUNY Graduate Center in New York. His new book, "Dancing in the Dark: A Cultural History of the Great Depression," will be published in September.